Abstract
On September 16, 1972, harvesting of shellfish along the entire 3220-km Massachusetts coastline came under interdict after declaration of a public-health emergency by the Governor. Marketing, exporting and serving of shellfish were prohibited throughout the Commonwealth, and stocks were confiscated. A few days earlier, the bodies of 95 adult birds had been retrieved from the surface of the Merrimack River estuary at Plum Island. The deaths were at first attributed to aerial spraying of pesticides. Autopsy revealed instead intensive hemorrhage of internal organisms and mollusk shells in the stomach. On the same day, a reddish-brown mass of marine growth was . . .

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